Metered-Dose Inhaler (MDI) and Spacer

Why to Use a Spacer with a Metered-Dose Inhaler (MDI)

Because it can be difficult to use the correct technique with a metered-dose inhaler, we often recommend the use of a spacer. A spacer is a device that attaches to the metered-dose inhaler. It helps deliver the medicine to the airways of the lungs instead of the mouth. This helps the medicine work better and lessens side effects.

Steps for Using a Spacer with an MDI

Insert the inhaler/canister into spacer and shake.

Breathe out.

Put the spacer mouthpiece into your mouth.

Press down on the inhaler once.

Breathe in slowly (for 3-5 seconds).

Hold breath for 10 seconds.

Common Spacers Used With MDIs

You can read more about how to use some of the more common spacers by clicking on each one below: